US PATENT SUBCLASS 74 / 157
.~.~.~ Reversible

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

111  DF  MECHANICAL MOVEMENTS (INTERMITTENT GRIP TYPE) {3}
144  DF  .~ Grip units and features {5}
156  DF  .~.~ Gripper mountings, lever {2}
157.~.~.~ Reversible

DEFINITION

Classification: 74/157

(under subclass 156) Devices, in which the element which

engages the driven member may be shifted to impart either forward or reverse motion to the driven member.